John Spurlock | f88d808 | 2015-03-25 18:09:51 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.systemui.volume; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.res.Resources; |
| 21 | import android.util.ArrayMap; |
| 22 | import android.util.TypedValue; |
| 23 | import android.view.View; |
| 24 | import android.view.View.OnAttachStateChangeListener; |
| 25 | import android.widget.TextView; |
| 26 | |
| 27 | /** |
Julia Reynolds | 03c548f | 2016-12-14 15:02:38 -0500 | [diff] [blame] | 28 | * Class for updating textviews on configuration change. |
John Spurlock | f88d808 | 2015-03-25 18:09:51 -0400 | [diff] [blame] | 29 | */ |
Julia Reynolds | 03c548f | 2016-12-14 15:02:38 -0500 | [diff] [blame] | 30 | public class ConfigurableTexts { |
John Spurlock | f88d808 | 2015-03-25 18:09:51 -0400 | [diff] [blame] | 31 | |
| 32 | private final Context mContext; |
| 33 | private final ArrayMap<TextView, Integer> mTexts = new ArrayMap<>(); |
Julia Reynolds | 03c548f | 2016-12-14 15:02:38 -0500 | [diff] [blame] | 34 | private final ArrayMap<TextView, Integer> mTextLabels = new ArrayMap<>(); |
John Spurlock | f88d808 | 2015-03-25 18:09:51 -0400 | [diff] [blame] | 35 | |
Julia Reynolds | 03c548f | 2016-12-14 15:02:38 -0500 | [diff] [blame] | 36 | public ConfigurableTexts(Context context) { |
John Spurlock | f88d808 | 2015-03-25 18:09:51 -0400 | [diff] [blame] | 37 | mContext = context; |
| 38 | } |
| 39 | |
| 40 | public int add(final TextView text) { |
Julia Reynolds | 03c548f | 2016-12-14 15:02:38 -0500 | [diff] [blame] | 41 | return add(text, -1); |
| 42 | } |
| 43 | |
| 44 | public int add(final TextView text, final int labelResId) { |
John Spurlock | f88d808 | 2015-03-25 18:09:51 -0400 | [diff] [blame] | 45 | if (text == null) return 0; |
| 46 | final Resources res = mContext.getResources(); |
| 47 | final float fontScale = res.getConfiguration().fontScale; |
| 48 | final float density = res.getDisplayMetrics().density; |
| 49 | final float px = text.getTextSize(); |
| 50 | final int sp = (int)(px / fontScale / density); |
| 51 | mTexts.put(text, sp); |
| 52 | text.addOnAttachStateChangeListener(new OnAttachStateChangeListener() { |
| 53 | @Override |
| 54 | public void onViewDetachedFromWindow(View v) { |
| 55 | } |
| 56 | |
| 57 | @Override |
| 58 | public void onViewAttachedToWindow(View v) { |
| 59 | setTextSizeH(text, sp); |
| 60 | } |
| 61 | }); |
Julia Reynolds | 03c548f | 2016-12-14 15:02:38 -0500 | [diff] [blame] | 62 | mTextLabels.put(text, labelResId); |
John Spurlock | f88d808 | 2015-03-25 18:09:51 -0400 | [diff] [blame] | 63 | return sp; |
| 64 | } |
| 65 | |
| 66 | public void update() { |
| 67 | if (mTexts.isEmpty()) return; |
| 68 | mTexts.keyAt(0).post(mUpdateAll); |
| 69 | } |
| 70 | |
| 71 | private void setTextSizeH(TextView text, int sp) { |
| 72 | text.setTextSize(TypedValue.COMPLEX_UNIT_SP, sp); |
| 73 | } |
| 74 | |
Julia Reynolds | 03c548f | 2016-12-14 15:02:38 -0500 | [diff] [blame] | 75 | private void setTextLabelH(TextView text, int labelResId) { |
| 76 | try { |
| 77 | if (labelResId >= 0) { |
| 78 | Util.setText(text, mContext.getString(labelResId)); |
| 79 | } |
| 80 | } catch (Resources.NotFoundException e) { |
| 81 | // oh well. |
| 82 | } |
| 83 | } |
| 84 | |
John Spurlock | f88d808 | 2015-03-25 18:09:51 -0400 | [diff] [blame] | 85 | private final Runnable mUpdateAll = new Runnable() { |
| 86 | @Override |
| 87 | public void run() { |
| 88 | for (int i = 0; i < mTexts.size(); i++) { |
| 89 | setTextSizeH(mTexts.keyAt(i), mTexts.valueAt(i)); |
| 90 | } |
Julia Reynolds | 03c548f | 2016-12-14 15:02:38 -0500 | [diff] [blame] | 91 | for (int i = 0; i < mTextLabels.size(); i++) { |
| 92 | setTextLabelH(mTextLabels.keyAt(i), mTextLabels.valueAt(i)); |
| 93 | } |
John Spurlock | f88d808 | 2015-03-25 18:09:51 -0400 | [diff] [blame] | 94 | } |
| 95 | }; |
| 96 | } |